/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
use std::fmt::Display;

#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub enum ServiceState {
    /// Service just created, not started
    CreateJust,
    /// Service running
    Running,
    /// Service shutdown
    ShutdownAlready,
    /// Service start failure
    StartFailed,
}

impl Display for ServiceState {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        match self {
            ServiceState::CreateJust => write!(f, "CreateJust"),
            ServiceState::Running => write!(f, "Running"),
            ServiceState::ShutdownAlready => write!(f, "ShutdownAlready"),
            ServiceState::StartFailed => write!(f, "StartFailed"),
        }
    }
}
